Balfour allowed a three-run homer to Russell Martin in the game. He has surrendered five runs over his first 2 1/3 innings this spring.
Ford was recently cut by the Pirates. He hit .230/.307/.301 with two home runs, 19 RBI and 29 stolen bases with Triple-A Indianapolis last season.
Bourjos hit .274 in 175 at-bats last year.
Arcia was sent home sick Thursday with flu-like symptoms and didn't make the trip for Friday's game. Hicks felt minor discomfort in his elbow during batting practice Thursday before his team's game against the Cardinals was rained out.
Barton has four hits over his first eight at-bats this season. No word on the severity of the injury, according to the report.
Maholm was solid in three innings. He gave up one run on three hits. He walked none and fanned four.
The veteran is battling Dan Haren and Josh Beckett for the fifth spot in the rotation.